A clause, in logic, is a propositional formula composed of literals—atoms or their negations—linked by logical operators, usually presented as a disjunction or conjunction. Disjunctive clauses, the more common type, are true if any of the literals is true, whereas conjunctive clauses require all literals to be satisfied.
Authors such as Henry Watson Fowler examined clauses in grammar, analyzing their role in defining or connecting ideas, while Thomas Wood viewed clauses as structural components that combine subject and predicate. Lillian Kimball investigated concessive clauses, emphasizing their function in balancing sentence meaning. These diverse perspectives highlight the clause's dual significance as a fundamental element in both formal logic and linguistic structure, bridging abstract reasoning with everyday language.